Portable cement mixer

ABSTRACT

A portable cement mixer for mixing cement in wheelbarrows or other conveyances with the mixer being detachably mounted on a post fixed to the ground and including a swingable arm carrying a mixer on the end thereof for engaging in a wheelbarrow to mix cement therein. In one form of the invention a water supply is provided attached to the mixer and the mixer blade is adjustable in height to reach the bottom of wheelbarrows of varying depths.

United States Patent Questi, Sr. et al.

June 28, 1974 PORTABLE CEMENT MIXER Inventors: Charles Questi, Sr., 406 E. Weshkah St; Jerry T. Kadlec, 9202 Fortune Ave.; Charles J. Questi, Jr., 628 Hahna Ave., all of Aberdeen, Wash. 98520 Filed: July 11, 1972 Appl. No.: 270,823

Related US. Application Data Continuation-impart of Ser. No. 147,137, May 26, 197 I, abandoned.

US. Cl. 259/178 R, 259/108 Int. Cl. B28c 5/16 Field 0i Search 259/178 R, 179, 178 A,

References Cited UNITED STATES PATENTS 7/1926 Skoog 259/178 R FOREIGN PATENTS OR APPLlCATlONS 491,618 3/1953 Canada 259/108 253,423 11/1948 Switzer1and... 259/8 1,150,101

7/1957 France 259/122 Primary Examiner-Harvey C. Hornsby Assistant Examiner-Phi1ip R. Coe Attorney, Agent, or Firm-Victor J. Evans & Co.

[ 5 7 ABSTRACT A portable cement mixer for mixing cement in whee1- barrows or other conveyances with the mixer being detachably mounted on a post fixed to the ground and including a swingable arm carrying a mixer on the end thereof for engaging in a wheelbarrow to mix cement therein. In one form of the invention a water supply is provided attached to the mixer and the mixer blade is adjustable in height to reach the bottom of whee1barrows of varying depths.

3 Claims, 9 Drawing Figures PATENTEDJUN28 new I 3 '3 753 sum 2 or 2 1 PORTABLE CEMENT MIXER CROSS REFERENCE TO RELATED APPLICATION This application is a continuation-in-part of my copending applicationSer. No. 147,137, filed May 26,

1971 and now abandoned, entitled Portable Cement Mixer.

BACKGROUND OF THEINVENTION 1. Field ofthe Invention Thepresent invention relatesto cement mixers which are adapted to mix cementin wheelbarrows.

2. Summary of the Invention A postmounted-mixer ispositioned so as to be lowered into a wheelbarrow to miXcementtherein. In one form of the invention a water supply iskprovided for wetting the cement in the wheelbarrow.

The primary object of the invention is to provide a mixer formixing cement in wheelbarrows or other conveyances.

Other objects and advantages will become apparent in the following specification when considered in the light of the attached drawings.

BRIEF DESCRIPTION OF THEDRAWINGS FIG. 1 is aside elevational view of the mixer;

FIG. 2 is a fragmentary top'plan view of the mixer, taken on line -2-2 of FIG. 1, looking in the direction of the arrows;

FIG. 3 is a fragmentary top plan view of the mixer, taken on line 3 3 of FIG. 1, looking in the direction of the arrows;

FIG. 4 is .a transverse sectional view through the mixer shaft;

FIGVS is a modifiedmounting post;

FIG. 6 is a side elevational view of a modified form of the invention;

FIG. 7 isa transverse sectional view, taken along the line 77 of 'FIGA'6, looking in the direction of the arrows;

FIG. 8 is a vertical sectional view, taken along the line 88 of FIG. 6, looking in the direction of the arrows; and t i I FIG. 9 is a fragmentary top plan view of the handle of the mixer. I

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings in detail, wherein like reference characters indicate like parts throughout the several figures, the reference numeral 2 indicates generally a conventional wheelbarrowhaving a front wheel 22, a stand 24,and handle bars 26 with a container or barrow 28 secured thereabove.

Abase plate30 is mounted to the floor or ground surface 32 by means of bolts 34. It should be noted that base plate 30 may be cemented to surface 32 or mounted thereto in any other conventional manner.

Extending from plate 30 is an upright post 36. As

shown in FIG. 5, plate30 maybe mounted against a vertical wall 38 with an elbow shaped support 40 extendingfrom plate 30.

Rotatably mounted on the top portion of post 36 or support 40 isa cylindrical sleeve 50 having a mount 52 rigidly attached to the top end thereof. Mount 52 is comprised ofa base portion 54 andsideportions 56 between which a pin 58 is rotatably mounted.

A mounting arm hasa longitudinal slot 72 through one end thereof positioned so that the distance between the bottom surface 74 of arm 70 and the bottom surface 76 of slot 72 is less than the vertical distance between the bottomof pin 58 and the top surface of portion 54 of mount 52. Also, the width of slot 72 is greater than the diameter of pin 58 so that pin 58can be movably received within slot 72 with the lower surface of pin 58 rolling over surface 76 of slot 72. In this manner arm 70 is slidably moved forward and backward over the bottom portion 54 and between side portions 56 of mount 52 for the desired positioning of the mixer within wheelbarrow 20 which will be explained in detail later on. A bolt 80 and nut 82 are insertable through a hole 84 in arm 70 near the end thereof to prevent pin 58 from accidentally coming out of slot 72 as arm 70 is moved forward by the operator.

The other end of arm 70 is formed into a handle with a switch 92 thereon connected to a motor 94 within a housing 96 secured to the top of arm 70 be tween handle 90 and slot 72 and connected to a source of power (not shown) by means of a cable 98 and plug 100. The drive shaft 102 of motor 94 engages a gear 104 which in turn drives anothergear 106 from which extends downward a shaft 108 through a bore 110 in arm 70. Secured at the bottom of :shaft 108 for rotation therewith is a mixing blade 120. Mounted to the bottom surface 74 of arm 70 by means of bolts 122 is a bar 124 having an aperture 126 therein through which shaft 108 extends. Spaced below bar 124 and arm 70 is a rectangular loop 128 which extends downward from bar 124 by means of vertical bars 130 extending from each end of bar 124. Loop 128 is at a slightly lower level than the bottom edge of blade 120 to eliminate the possibility of blade 1.20 making physical contact with the bottom of barrow 28 and to stabilize the motor and portion of arm 70 extending outward from mount 52 in a situation where loop 128 actually makes physical contact with barrow 28 or any other container that is used for mixing the cement. The mixer may be readily lifted out of the associated receptacle when desired.

Referring now to FIGS. 6 through 9 a modified mixer is indicated generally at 150.

The mixer includes a post 151 having a horizontal base 152 secured to a cement base by means of fasteners 153. A socket 154 engages over the post 151 and is swivelly mounted thereon for rotation about a vertical axis. A head 155 is secured to the socket 154 and includes a pair of spaced parallel ears 156. A support 157 extends outwardly and upwardly from the head 155 forreasons tobe assigned. A bracket 158 is pivotally mounted between the ears 156 by a pivot pin 159 extending therethrough. The bracket 158 has a lower cylindrical portion 160 and an upper cylindrical portion 161 with the upper cylindrical portion 161 being slightly smaller than the lower cylindrical portion 160.

A tubular frame member 162 is slidably mounted in the cylindrical portion 161 of the bracket 158 and a tubular water conduit 163 extends parallel thereto and is slidably mounted in the cylindrical portion 160 of the bracket 158. A bracket 164 rigidly connects the tubular frame member 162 to the water conduit 163 adjacent the outer end thereof. A hose connection 165 is mounted on one end of the water conduit 163 for connecting a water hose thereto. An elbow 166 is connected to the opposite end of the water conduit 163 and carries a hand controlled valve 167 and nozzle 168 thereon for feeding water to the cement being mixed.

A tubular T member 169 is mounted on the outer end of the tubular frame member 162 and has a vertical shaft housing 170 forming a part thereof. A handle shaft 171 extends horizontally out of the T member 169 and carries a T handle 172 on the outer end thereof. A mixer shaft 173 is journalled in the shaft housing 170 and has its upper end extending into a motor drive unit 174 carried on the tubular frame member 162. The shaft 173 has its lower end threaded at 175 and a socket member 176 is threaded thereon and locked in adjusted position by a lock nut 177. Mixer blades 178 are mounted on the lower end of the socket member 176 and their height with respect to the shaft 173 can be adjusted by loosening the lock nut 177 and moving the socket member 176 on the threads 175. An electric cable 179 extends through the tubular frame member 162 to provide electricity to the motor drive unit 174.

The use and operation of the mixer 150 is identical to that described in FIGS. 1 through with the mixer blades being adjustable as required by the height of the wheelbarrow bar.

Having thus described the preferred embodiments of the invention it should be understood that numerous structural modifications and adaptations may be resorted to without departing from the spirit of the invention.

What is claimed is:

l. A portable cement mixer, comprising a stationary upright post, mounting means detachably connected to said post for rotational adjustment about the axis of said post and rotational adjustment around a horizontal axis overlying the top of said post and extending perpendicularly through the axis of said post, a second mounting means slidably connected to said mounting means for rotational adjustment with said first named mounting means about the axis of said post and about said horizontal axis and sliding adjustment as directional movement along the longitudinal axis of said second mounting means radially with respect to the axis of said post, power means secured to said second mounting means, a blade secured to and driven by said power means and extending below said power means and said second mounting means, and hand control means secured to and extending axially of said second mounting means beyond said power means for moving the mixer blade into and out of a mixing container.

2. A device as claimed in claim 1 including means for adjustably mounting said blade on said power means to adjust the height of said blade with respect to the mixing container.

3. A device as claimed in claim 2 including a conduit means carried by said second mounting means in spaced parallel relation thereto for supplying water to the mixing container. 

1. A portable cement mixer, comprising a stationary upright post, mounting means detachably connected to said post for rotational adjustment about the axis of said post and rotational adjustment around a horizontal axis overlying the top of said post and extending perpendicularly through the axis of said post, a second mounting means slidably connected to said mounting means for rotational adjustment with said first named mounting means about the axis of said post and about said horizontal axis and sliding adjustment as directional movement along the longitudinal axis of said second mounting means radially with respect to the axis of said post, power means secured to said second mounting means, a blade secured to and driven by said power means and extending below said power means and said second mounting means, and hand control means secured to and extending axially of said second mounting means beyond said power means for moving the mixer blade into and out of a mixing container.
 2. A device as claimed in claim 1 including means for adjustably mounting said blade on said power means to adjust the height of said blade with respect to the mixing container.
 3. A device as claimed in claim 2 including a conduit means carried by said second mounting means in spaced parallel relation thereto for supplying water to the mixing container. 